Hesa Fredrik
Swedish
![](Images/wiktionary/Horn_for_public_warning_system_Sweden.JPG.webp)
A Hesa Frerik.
Etymology
Hesa (“Hoarse”) + Fredrik (“Fredrik”). Allegedly coined by DN columnist Oscar Fredrik Rydqvist in 1931.
Noun
Hesa Fredrik c
- type of outdoor sirens used to broadcast a VMA (“Important Announcement to the Public”); broadcasting system used to invoke the attention and alert the public in situations of immediate danger (e.g. toxic smoke, poisonous water supply, forest fire, war, etc.)
- Synonyms: VMA, flyglarm, mistlur